July 2008 Rev 4 1/16
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STCS2
2 A max constant current LED driver
Features
■ Up to 40 V input voltage
■ Less than 0.5 V voltage overhead
■ Up to 2 A output current
■ PWM dimming pin
■ Shutdown pin
■ LED disconnection diagnostic
Applications
■ LED constant current supplying for varying
input voltages
■ Low voltage lighting
■ Small appliances LED lighting
■ Car LED lights
Description
The STCS2 is a BiCMOS constant current source
designed to provide a precise constant current
starting from a varying input voltage source. The
main target is to replace discrete components
solution for driving LEDs in low voltage
applications such as 5 V, 12 V or 24 V giving
benefits in terms of precision, integration and
reliability.
The current is set with external resistor up to 2 A
with a ± 10 % precision; a dedicated pin allows
implementing PWM dimming.
An open-drain pin output provides information on
load disconnection condition.
PowerSO-10
1
10
Table 1. Device summary
Order code Package Packaging
STCS2SPR PowerSO-10 600 parts per reel
www.st.com
